The correct answer is D. curd : cheese.
Cotton is a raw material that is used to make a bale. Similarly, curd is a raw material that is used to make cheese.
Butter is made by churning cream. Wine is made by fermenting grapes. Grain is harvested in shocks. Beef is a cut of meat from a cow.
Curd is a solid substance that is produced when milk is coagulated. It is the first step in making cheese. The curd is separated from the whey, and then it is pressed into a mold to form the desired shape of cheese.
Cheese is a dairy product that is made from milk. It is produced by coagulation of the milk protein casein. The milk is usually acidified and then heated, which causes the casein to coagulate. The curds are then separated from the whey and pressed into a mold. Cheese can be eaten fresh, or it can be aged for a longer period of time.
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